aboutsummaryrefslogtreecommitdiffstats
path: root/lib/Target/PTX/PTXAsmPrinter.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Target/PTX/PTXAsmPrinter.cpp')
-rw-r--r--lib/Target/PTX/PTXAsmPrinter.cpp148
1 files changed, 110 insertions, 38 deletions
diff --git a/lib/Target/PTX/PTXAsmPrinter.cpp b/lib/Target/PTX/PTXAsmPrinter.cpp
index b1f7c1e..2848d54 100644
--- a/lib/Target/PTX/PTXAsmPrinter.cpp
+++ b/lib/Target/PTX/PTXAsmPrinter.cpp
@@ -22,10 +22,12 @@
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
+#include "llvm/Analysis/DebugInfo.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/Mangler.h"
@@ -35,6 +37,7 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
@@ -63,8 +66,13 @@ public:
const char *Modifier = 0);
void printParamOperand(const MachineInstr *MI, int opNum, raw_ostream &OS,
const char *Modifier = 0);
+ void printReturnOperand(const MachineInstr *MI, int opNum, raw_ostream &OS,
+ const char *Modifier = 0);
void printPredicateOperand(const MachineInstr *MI, raw_ostream &O);
+ unsigned GetOrCreateSourceID(StringRef FileName,
+ StringRef DirName);
+
// autogen'd.
void printInstruction(const MachineInstr *MI, raw_ostream &OS);
static const char *getRegisterName(unsigned RegNo);
@@ -72,10 +80,13 @@ public:
private:
void EmitVariableDeclaration(const GlobalVariable *gv);
void EmitFunctionDeclaration();
+
+ StringMap<unsigned> SourceIdMap;
}; // class PTXAsmPrinter
} // namespace
static const char PARAM_PREFIX[] = "__param_";
+static const char RETURN_PREFIX[] = "__ret_";
static const char *getRegisterTypeName(unsigned RegNo) {
#define TEST_REGCLS(cls, clsstr) \
@@ -172,6 +183,20 @@ void PTXAsmPrinter::EmitStartOfAsmFile(Module &M)
OutStreamer.AddBlankLine();
+ // Define any .file directives
+ DebugInfoFinder DbgFinder;
+ DbgFinder.processModule(M);
+
+ for (DebugInfoFinder::iterator I = DbgFinder.compile_unit_begin(),
+ E = DbgFinder.compile_unit_end(); I != E; ++I) {
+ DICompileUnit DIUnit(*I);
+ StringRef FN = DIUnit.getFilename();
+ StringRef Dir = DIUnit.getDirectory();
+ GetOrCreateSourceID(FN, Dir);
+ }
+
+ OutStreamer.AddBlankLine();
+
// declare global variables
for (Module::const_global_iterator i = M.global_begin(), e = M.global_end();
i != e; ++i)
@@ -225,6 +250,54 @@ void PTXAsmPrinter::EmitInstruction(const MachineInstr *MI) {
raw_string_ostream OS(str);
+ DebugLoc DL = MI->getDebugLoc();
+ if (!DL.isUnknown()) {
+
+ const MDNode *S = DL.getScope(MF->getFunction()->getContext());
+
+ // This is taken from DwarfDebug.cpp, which is conveniently not a public
+ // LLVM class.
+ StringRef Fn;
+ StringRef Dir;
+ unsigned Src = 1;
+ if (S) {
+ DIDescriptor Scope(S);
+ if (Scope.isCompileUnit()) {
+ DICompileUnit CU(S);
+ Fn = CU.getFilename();
+ Dir = CU.getDirectory();
+ } else if (Scope.isFile()) {
+ DIFile F(S);
+ Fn = F.getFilename();
+ Dir = F.getDirectory();
+ } else if (Scope.isSubprogram()) {
+ DISubprogram SP(S);
+ Fn = SP.getFilename();
+ Dir = SP.getDirectory();
+ } else if (Scope.isLexicalBlock()) {
+ DILexicalBlock DB(S);
+ Fn = DB.getFilename();
+ Dir = DB.getDirectory();
+ } else
+ assert(0 && "Unexpected scope info");
+
+ Src = GetOrCreateSourceID(Fn, Dir);
+ }
+ OutStreamer.EmitDwarfLocDirective(Src, DL.getLine(), DL.getCol(),
+ 0, 0, 0, Fn);
+
+ const MCDwarfLoc& MDL = OutContext.getCurrentDwarfLoc();
+
+ OS << "\t.loc ";
+ OS << utostr(MDL.getFileNum());
+ OS << " ";
+ OS << utostr(MDL.getLine());
+ OS << " ";
+ OS << utostr(MDL.getColumn());
+ OS << "\n";
+ }
+
+
// Emit predicate
printPredicateOperand(MI, OS);
@@ -298,6 +371,11 @@ void PTXAsmPrinter::printParamOperand(const MachineInstr *MI, int opNum,
OS << PARAM_PREFIX << (int) MI->getOperand(opNum).getImm() + 1;
}
+void PTXAsmPrinter::printReturnOperand(const MachineInstr *MI, int opNum,
+ raw_ostream &OS, const char *Modifier) {
+ OS << RETURN_PREFIX << (int) MI->getOperand(opNum).getImm() + 1;
+}
+
void PTXAsmPrinter::EmitVariableDeclaration(const GlobalVariable *gv) {
// Check to see if this is a special global used by LLVM, if so, emit it.
if (EmitSpecialLLVMGlobal(gv))
@@ -417,12 +495,14 @@ void PTXAsmPrinter::EmitFunctionDeclaration() {
const PTXMachineFunctionInfo *MFI = MF->getInfo<PTXMachineFunctionInfo>();
const bool isKernel = MFI->isKernel();
+ const PTXSubtarget& ST = TM.getSubtarget<PTXSubtarget>();
std::string decl = isKernel ? ".entry" : ".func";
+ unsigned cnt = 0;
+
if (!isKernel) {
decl += " (";
-
for (PTXMachineFunctionInfo::ret_iterator
i = MFI->retRegBegin(), e = MFI->retRegEnd(), b = i;
i != e; ++i) {
@@ -443,7 +523,7 @@ void PTXAsmPrinter::EmitFunctionDeclaration() {
decl += " (";
- unsigned cnt = 0;
+ cnt = 0;
// Print parameters
for (PTXMachineFunctionInfo::reg_iterator
@@ -452,7 +532,7 @@ void PTXAsmPrinter::EmitFunctionDeclaration() {
if (i != b) {
decl += ", ";
}
- if (isKernel) {
+ if (isKernel || ST.useParamSpaceForDeviceArgs()) {
decl += ".param .b";
decl += utostr(*i);
decl += " ";
@@ -467,41 +547,6 @@ void PTXAsmPrinter::EmitFunctionDeclaration() {
}
decl += ")";
- // // Print parameter list
- // if (!MFI->argRegEmpty()) {
- // decl += " (";
- // if (isKernel) {
- // unsigned cnt = 0;
- // for(PTXMachineFunctionInfo::reg_iterator
- // i = MFI->argRegBegin(), e = MFI->argRegEnd(), b = i;
- // i != e; ++i) {
- // reg = *i;
- // assert(reg != PTX::NoRegister && "Not a valid register!");
- // if (i != b)
- // decl += ", ";
- // decl += ".param .";
- // decl += getRegisterTypeName(reg);
- // decl += " ";
- // decl += PARAM_PREFIX;
- // decl += utostr(++cnt);
- // }
- // } else {
- // for (PTXMachineFunctionInfo::reg_iterator
- // i = MFI->argRegBegin(), e = MFI->argRegEnd(), b = i;
- // i != e; ++i) {
- // reg = *i;
- // assert(reg != PTX::NoRegister && "Not a valid register!");
- // if (i != b)
- // decl += ", ";
- // decl += ".reg .";
- // decl += getRegisterTypeName(reg);
- // decl += " ";
- // decl += getRegisterName(reg);
- // }
- // }
- // decl += ")";
- // }
-
OutStreamer.EmitRawText(Twine(decl));
}
@@ -524,6 +569,33 @@ printPredicateOperand(const MachineInstr *MI, raw_ostream &O) {
}
}
+unsigned PTXAsmPrinter::GetOrCreateSourceID(StringRef FileName,
+ StringRef DirName) {
+ // If FE did not provide a file name, then assume stdin.
+ if (FileName.empty())
+ return GetOrCreateSourceID("<stdin>", StringRef());
+
+ // MCStream expects full path name as filename.
+ if (!DirName.empty() && !sys::path::is_absolute(FileName)) {
+ SmallString<128> FullPathName = DirName;
+ sys::path::append(FullPathName, FileName);
+ // Here FullPathName will be copied into StringMap by GetOrCreateSourceID.
+ return GetOrCreateSourceID(StringRef(FullPathName), StringRef());
+ }
+
+ StringMapEntry<unsigned> &Entry = SourceIdMap.GetOrCreateValue(FileName);
+ if (Entry.getValue())
+ return Entry.getValue();
+
+ unsigned SrcId = SourceIdMap.size();
+ Entry.setValue(SrcId);
+
+ // Print out a .file directive to specify files for .loc directives.
+ OutStreamer.EmitDwarfFileDirective(SrcId, Entry.getKey());
+
+ return SrcId;
+}
+
#include "PTXGenAsmWriter.inc"
// Force static initialization.
generated by cgit v1.1 at 2025-11-13 08:57:53 +0000